Leather-folding machine



J. W. ANTHONY.

LEATHER FOLDING MACHINE.

APPLICATION FILED JULY I5. I9Is.

E. ,Sgi Patnteol Aug. 9, 1921i...

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J. W. ANTHONY.

LEATHER FOLDING MACHINE.

APPucATloN FILED JULY 15.1918.

Patented Aug. 9,1921.

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v LEATHER FOLDING MACHINE. APPLICATION man JULY 15. 1918.

I. W. ANTHONYa LEATHER FOLDING MACHINE.

APPLICATION FILED .IULY I5, 1918. 1,3869676, Patented; Aug. 9, 192i.

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JOSEPH W. ANTHONY, OF LYNN, MASSACHUSETTS.

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Application led July 15,

To all whom t may concern."

Be it known that I, JOSEPH W. ANTHONY, a citizen of the United States, and a resident of Lynn, county of Essex, and State of Massachusetts, have invented Van Improvement in Leather-Folding Machines, of which the following is a specication.

My invention relates to leather folding machines and is designed to be an improvement on the machines described and claimed in my previous patent applications: rSerial lo. 79,205, Patent 1,326,826, filed Feb. 18, 1916; Serial No. 155,343, Patent1,365,648, led March 16, 1917; Serial No. 155,344, Patent 1,326,827, filed March 16, 1917 Serial No. 155,345, `Patent 1,326,828, filed March 16, 1917 Serial No. 224,224, filed March 23, 1918, and more particularly it is an improvement of the machine described in said last application.

The machines described in said applications are adapted for theV folding 'of leather, flexible fabric, or similar material, to. form one or more folded edges and also to form a crease or ornamental marking on the folded edge. Each machine has, as elements, a material clamping means, a fold defining means, a folding means, and a creasing means, although the creasing means may be omitted if the ornamental marking is not desired. Inasmuch as a machine of the type specified is designed to fold the material to differing dimensions as, for instance, in the lmanufacture of a line of book covers, small c pocket books, and the like, it is desirable that the component parts of the machine which operate upon the material be adjustable in order that said component parts may be moved relatively to each other to condition the machine for Vthe folding of material to differing dimensions, and with'but the minimum number of elements which correspond to each size of folded product andvk which must be removed and replaced by a new part of a size corresponding to they size of the new article :to 'be manufactured.`

Specifically my presser head designed to replace the head of the 'machine described in the last above named application and the object of my invention is the provision of means whereby the elements carried by said head are relatively adjustable to thereby condition said elements for operation upon material for the folding thereof to differing dimensions.

The means whereby I accomplish this Specification of Letters Patent.

invention relates to a` LEATHER-'FOLDING MACHINE.

Patented Aug. 9, 1921.

1918. Serial No. 244,842.

object of my invention lis by forming the respective elements in segments, or separate portions, which are relatively movable to thereby change the dimensions of the elements and which overlap or overslide relative to another, thereby permitting ofexpansion or contraction of said elements without interrupting or causing a break in its contour or surface. Said presser head carries a clamping plate which is movable into engagement with unfolded material placed on a material table therebeneath to secure said material to said table for operation thereon; and fold defining means which coinprise forming plates arranged on and above said clamping plateand Awhich serve to define the folding edge.

A further object of my invention is the provision of means whereby said elements are operated in their respective order. The forming plates are extensibleto define the line of fold and are retractable from the fold to permit further operation of the machine.

It is desirable that said forming plates be locked in their fold defining position in order that they may always define the same Vdimension of folded edge and not be moved from their initial set position during a sucfining means are in their' extended position to thereby lock said means in said position.

Unlocking means are providedv which are operated from a component part of the operating mechanism previous to the engage*- ment of said mechanism with the fold defining means operating member to move said fold defining means from the folded edge.

Itis desirable thatthe fold defining means or forming plates be extended to fold defining position after the clamping plate has been raised to its original position or during the latter part of its movement into such poy sition to thereby again present a line of fold.

Consequently a yet further object of my invention is the provision of means whereby I accomplish this result, which means comprises a connection between the clamping plate operating member and the forming plate operating membenwvherebythe movement of said clamping plate member to raise said clamping plate servesy to wiactuate -the forming plate member to eXtend said torming plates.

Figure 1 is a'plan vieiv of a'tolding'machinev embodying my invention.

Fig. 2 is a plan'vievv of a presser head and "associated mechanism embodying my invention.

movements ot'the mechanism.

ivvherebythe mechanism may be stopped at the end of one cycle of operation to permit i ith'eremoval` oft-he folded material and the Fig. 3 is a side elevation of Fig. 2.

Fig. 4. is za sectional elevation along lines 4 4, Fig. '2.

Fig. 5-is a sectionalI plan detail along` lines 5i-5, F ig. 4 showing' the'presser base, cer* tain elements carried thereby being removed. Figs. 6 and 7 are a planvievv and side yelevation respectively of amo'diied form ot' forming plate.

Fig. 8 is'a front elevation otthe :presser :As-here shoivnthemachi'ne includes the "table 10 `upon .whichisarranged the mechal ynismv for performingthe various operations upon the materiah Said 4mechanism is `driven from 'motor'11 arranged on -said table and connectedthrough belts 12 and 1 L and gears 13and 131'Witha cam shatt'14, from 301 ipartsft themechanism is controlled. Said vbelts and gearing form 'a convenient'lmeans otA reducing the' relatively high 'speed of the ymotor to a suitably lovvspeed 'for driving the machine although it is obvious Vthat other -means may be employed.

which cam shaft theoperation ofthe various 'cam disk 15 having `the cam path 16 isiixed to said shaft 14 and servesto wactuatefand lgovern the It is desirablethat means 'be yprovided insertion of an lunfolded'blank and -attcrthe mechanism is started i-n operation to continue in operationa'nd stop at the'end ofthe complete cycle*A in conditionv torth'e insertion n mechanism be Astepped. at `some'intermediate l after thel material has been folded, and While thecreasing iron is in'contact with' the tolded e`d'ge,"to thereby provide sufficient time operation ot" the machine, as -for`ii`istance,

for the r'in adherence ot the folded edge to the main bo'dyotv the material and to `heat the ,folded edge to thereby receive a ivell `defined crease orornamental'marking. Teac-- 'cemplish these `results the gear 13 is .ar- -ranged'onsai'd-shatt 14 to rotateeither indejpend'e'ntlygot-said 'shatt'with continued rotation oi" the inotoror to Lrotate vivithsaid-shatt yto actuat'e fthe componentrparts of the ma- :yhineand f clutching means are i provided," to "'controlfth'e driving connection betive'ensaid ge'a'rand shaft.

lWhich/meshes with a'corresponding gearKV soY Y upwardly extended 'from'the periphery ot the yoperating ringdescribed' in the vabove -n`amed applicationwvhichl controls the move- 'ment'of theiyipers and Acreasing iron. reciprocatory' movement otsaidcros's; head #35 causesan oscillatory movement ot-theop-` erating ring vvh'ereby' toV reciprocate, through calms,v the Wipers jand creasing iron.

Y A presser arm-45 fflanged an'diibbed for '1 strength aiid lightness issecured tothe table vor'baseljot the machine and Vextends over fsaidbedortable and terminates in spaced yapart Vertical `Walls y.48. 'jFBloclrs -49 .are secured inthe adjacent taces'ot-saidivalls 48 .'Wh'ich the presserhead-is slidably arranged. lt isdesirable that"thefpresser'head be movable from itsiiiesitionabove the'ztable ot i' vthe machineutoipermit access'tc the variousY 'eleinents ot the-machine operabie upon the v:material and.V tor-this purpose the 'presser arm' is )'ivotally -Secu'redto' the bed' o'r'ftable ot thefmachine; andr is"'mova1ble about the fpivot pin 17 'extended between' the base`418 ot the' pjresser arfinand thebed` ori table1`0 ofthe machine.

, 'BoltsQfei/itend' through base of Athe'` loro 'presser-"arm landl's'cre'iv linto the bed or table i 10 'of the machine vto'secure the Vpresser arm "and other bolts v21"are passed through" arcuateslots 22 in the 'base `oit' saidpresser -arin e i l.

- an'da're screwed into thebed: or table 10; j 4'VVhilebot-h sets ofbolts 20'and'21`serve to Asecure'thelpresser'arm to s'aidibed ortable in f the proper positionotsaid arm to permit the i 'operation of the various "operating elements "carried thereby upon *the iinlaterial; bolts 21 in addition Vserve tealiiie the presser farml in its correctposition over thefinaterial table.v

liththe lprovision' 'of the arcuate slots 22 'finivhich thveboltsV Q1 arefarra-nged',`it is not necessary tocompletel'y remove said bolts` to 4v`ierm'it the moving'ot' the presser arm.

. pivoty pin is eccentrically located inY the' base ofthe presser arm 'wherebythe arm may be, moved towardfthe left, see Fig. 1,

Without lany partjthereot:engaging the cam "disk `15, lwhich 'would preventfa'rther moveii'o f thereto in proper position above the'I table j y ment, as would be the case if the pivotal connection with the bed r table l() of the machine were centrally located'with respect to the presser arm.

Said presser head has a base portion of more or less hexagonal form with a bottom wall 52 and side walls 53. Said head is formed with two vertically extended arms 54 having V shaped portions 55 which are slidably arranged in the ways 51 of said presser arm. A cross member 56 serves to connect the top ends of said arms 54 and is secured to said arms by the bolts 57 and thereby forms a rigid structure.

Said presser head is adapted to be per- 'mitted to drop vertically downward in the ways 5l in said presser arm to thereby clamp material between a yclamping plate Vcarried by it and the material table 60 arranged beneath said presser head and to be moved vertically upward in its ways duringr a certain part of the cycle operations of the machine to permit the release of the finished material from the machine.

The movements of said presser head are controlled by the cam block 61. Said block is arranged between the vertically extended arms54 of the presser head and is supported in the channel formed by the bottom wall 62 and connected side walls 63 which are integral with the presser frame. Said cam block is slidably arranged in a groove 64 in the bottom wall 62, and a cross bar 65 secured between said side walls 63 serves to restrain said cam block 6l therein7 but does not restrain its reciprocatory movements. The cross member 56, secured between the vertically extended side arms 54 of the 'presser head, is formed with two spaced apart downwardly extended lugs 66 which extend into the space between said cam block 6]. and the side walls 63 and between which said cam block 6l is slidably arranged. A pin 67 extends between said lugs 66 and a roller 68 is arrangedl thereon betweenlsaid lugs.

Said cam block 6l is formed with a cam slot 70 therein which is preferably arranged substantially at forty-five degrees with the path of movement of said cam and said roller 68 of the presser head is arranged therein. Y

It is seen that as cam block 6l is moved to the left from the position shown in Fig. 4, the presser head is permitted to move downward to secure the material arranged on the material table beneath said presser head to said table and a movement of the cam in thev opposite direction causes an upward movement of the presser head to cause the unclamping of the folded material.

While said cam block 6l controls the movement of the presser head toward and away from the material on the table arranged therebeneath, yet the extent of such Vtion away r movement is fixed. It is desirable that the extreme low position of the presser head be varied thereby to condition the machine for the folding of material of differing thicknesses as it may be readily seen that an adjustment of the machine suitable for `one thickness of material will not be correct for thicker or thinner' material and with athicker material, for instance, the maximum depression of the head will be insuilicient and the wipers will cut the edge of the material in the folding operation.

Means are therefore provided whereby the lowest operated position of the presser head Y may be adjusted. Such an adjustment may 8O be accomplished by varying the position of said cam block 6l on its operating rod 71 either at its immediate connection with said rod or, what the equivalent, at the connection of said rod 7l withthe member 7 4, or otherwise, l prefer, however to make suoli adjustment by means of shims 30 inserted between the cross member 56, the movements of which are controlled bythe cam block 6l., and the arms 54 of the presser-head. it may 90 be seen that by inserting shims therebetween, the presser-head will be moved a correspondingly greater distance downward than before, and if shims are removed, or the thickness of the shims are decreased, then thel presser head will be moved a correspondingly less distance downvrnard.`

Movements of the cam block 6l are controlled through the upper cam rod '.71 which is slidably arranged in bearingsin cross ribs 100 `@of the presserarin a nd which is fixed into said cam block 6l by means of set screws 4"3. Said upper cam rod 7l, at its farther end, 1s connected through the arm 74 with an extension 75 arranged. in the lower part of 105y said presser arm and slidably arranged in a lcross rib I6 thereof. 'A pin 'T'is don/n- -wardly extended from rsaid extension 75'and a cam roller 76 ris arranged thereon which is disposedv in the cam groove? T9 of the camllO block 80.

Said cam block 80 is spaced above a second cam block 65, hereinafter to be more fully described, by the spacer block 66 and said cam blocks and spacer block are secured 'thereby retain said roller in its groeve.

When it is desired toswing the presser arm 45 from its normal position, to a posirom the material table, which -m`ovenient` is permittedby removing the,l

boltsr and loosening the bolts 2l., itis also Anecessary to disconnect the two cam blocks' 80 and 85 from the cross-head 35 in-y asmucli as said blocks are arranged o-n the baseorsaid presser arm. VThis -disengagen `ment is performed b y removing` the screws 87 Vwhich passthroug'h said blocks into the cross head, thereby entirely freeing the mechanism carried by the presser arm from connection with other parts of the machine.

The diagonally opposite corners-or the base ofthe presser head are 'formed with extensions 95, in the end races of which are formed dovetailed ways 96 in which are reciprocatingly arranged the sliding members 97. Saidsliding members are 'adapted to be moved outwardly or inwardly or said presser base to extend or retract the `fold defining'.A

ineansr or formingY tremities thereof.

Said sliding members 97 are forinedwith `dovetailed lower races on which are adjust- Y, ably arranged 'adapting' plates 98 which are provided with dovetailed slots 99 therein corresponding to the grooves on said members. The under races oi. said adapting plates 98 are formed with dovetailed 2grooves 100 therein, the axes or which are angularly related to the longitudinal axes oit said plates and corner 'forming platey brackets platesV carried at the .ex-

101 'having dovetailed surfaces 102 arel ad ljustably arranged in said grooves 100 or said adapting pla-tes 98.- Said forming plate `brackets 101 are formed with right angled edges to which are secured the forming fplates `105.- which V'are formed or thin mate-Y rial and presenttwolines oi': fold at right angles to eachother although it isobvious that the shape ofthe foldingedge may beY varied as desired. Y

. It isseen that, by the provision of adaptingplates which are slidably related to the 'sliding members 97, the forming plates may be diagonally moved or adjusted to thereby increase or decrease thedimensions or the folding edge which they definey in an eX- tended position. Sinoethe forming plates,

Y relative to said sliding members 97 to permit Y ythe desired adjustments of said forming.

or the brackets 101 whiclisupport said forming plates, are slid-ably arranged von said adapting plates and v"relatively movable therewith, the length of two sides oi'the told may be adjusted without necessarily chang'- 'Ying the lengthv of the other two sides or the 55 A bolt 10G 'passing through saidv sliding `rmembers l97, the adapting plates 98, andy forming `plate brackets 101 serve to lock all Aof said' members in any adjusted position, *and slots 107 in said forming- Yplate brackets permits a; movement or said forming plates plates. e j rlhe ends of the forming plates 105 are adapted `to lap over one another in both the extended and retracted positions thereoi' and have their contiguous ends oppositely tapered to thereby reduce the total thickness of metal at the overlapping` points.

f lhe forming` plates shown in Fig. l5 are suitable for' thederining` or a line orrol'd to a number of different dimensions.v `They will not, however, take care or all of the work which is required to be performed on this machine and 'for work upon smaller sizes,'a dilierent or modiiied set orvcorn'er plate brackets yand forming' platesare necessary. #Figs 6 and 7 show such modiiied brackets and forming' plates.-

lt is seen that these brackets and forming` plates are 4similar inl general construction and appearance to the 'formin'gplates and brackets shown in Fig. 5 with the difference that, whereasV inl Fig. 5 v the forming. plates are atthe extremitiesforthe reciprocating ythe two sides oit-,the 'forming plates maybe made or any suitable-.length for the iolding or material to many?` differing dimensions.

The reciprocatory movements of the reciprocating member 97, which `control the movements of the forming` plates, are vcontrolled by the twoslidingv cam blocks y110 farranged within the presser-base and sup- Aported,on the bottom wall 52V thereof; Said blocks 110 are adaptedto-'be reciprocated toward and away tromv eachother and each cam block 110 vis providedwith two cam Yslots-111 arranged at substantially forty-liveV degrees to the path or movement Vor said' blocks. `Pins 112` are secured to said reciprocating'members 97 and extendupwardly `through slots 113 in the base of bottomwall 52 oi said presserhea'd and are Vprovided at their upper extremitiesrwith' cam rolls 114 which are 'arranged in said cam slots'111.v

Itis seen'by this arrangement ,the movement or said camblocks 110 inwardlytoward each.

other operates'to cause said reciprocating vmembers '97 -to move diagonally inward to i consequently withdraw thef'forming "plates V 105 from their extended position 5 and a movement of said blocks 110 in the opposite 'direction serves to; extend said forming` plates;A f

aid cam blocks 110-are 'operated through lthe, cam block 115 ywhich is slidably arranged thereabove and issecured to a'forming plate"operatingfrod-v116 slidablyv arranged in bearings in the two opposing,4 walls 53 ofthe presser vbase and in :an eX- tended bearingll supported by the supporting arms 119 -securedto said lpresser arm. Said .cam block 115 i's formed with two .cam slots 120; therein which 'arel arranged at substantially forty-five degrees to the path of movement of said cam. Pins 121 are secured in said cam blocks 110 and are upwardly `extended and are provided with rollers which are disposed within l said cam slots 120.

1t may be seen that a movement of said Y cam block 115 will cause said camblocks 110 to be moved inwardly toward each other to correspondingly retract said forming plates and a movement of said block 115 in the reverse sense will cause the extension of said plates. Y

The movement of said forming plate operating rod to cause the retraction of the- .forming plates from extended position7 1s the spacer bloclr 86 between said cam blocks I 8O and S5 and its end is provided with a downwardly extended pin which 4has a roller thereon arranged in the cam slot 130 in said cam block 85, which cam block serves to control the retraction of the formingv plates.

The end of said lower cam rod 125 adjacent the rod 116 is provided with a contact block 131 which is caused to engage the end of said rod 116 to cause its movement in the retracting direction of the forming plates. 1t is desirable that the forming blocks be locked in their fold deiiningposi tion and for this purpose a slot 132 is formed in the upperside ofl said rod 116. A ley' 133 .is slidably arranged in ways -133 'in said wall 118 and surrounds said rod 116 and due to its weight, normally tends to from looking engagement with said rod 116 before the contact block 131 of the lower cam rod 125 is moved into contact with end A of said rod to actuate the same and for this purpose said rod 125 is provided with a projecting member 135 which is secured thereto and which extends beneath said rod 116. Said key 133 at its lower end is formed with a cam surface 140 which, in a depressed or material clamping position of the presser head, is arranged in the path of movement of the projecting member 135. Upon movement of the lower cam rod 125 previous to its engagement with rod 116 said extended member v135 is moved into contact with the cam portion 140 of said key and serves to raise said key from locking engagement with the slot 132 in said rod 116 and said key` may be maintained in said locking position by means of the flat portion 135a of said extension. A further' movement of said cam rod 125 causes the engagement of the contact block 131 with the end of said rod 116 to move said rod and thereby cause the retraction of the forming plates.

The presser head is provided with a clamping plate 145 which is adapted to be Tought into engagement with the material disposed on the material table 60 beneath said clamping plate to securely` hold said material thereon during the folding operations of the machine and the weight of the presser head and its associated mechanism is adapted to be sulicient to securely hold the material against said table during the folding process without the provisionof additional weight or other clamping means.

The clamping plate comprises essentially a thin flat plate over which the forming platesare adapted to slide and which has dimensions approximately coinciding with the linside dimensions deiined by the folded edges of the material although it is obvious that the vdimensions of said clamping plate can be varied considerably and yet securely hold the material in place during the various foldingv operations. The forming plates are adapted to be extended beyond the edges of said clamping plate to define the fold and to be retracted in from the edges of said Clamping plate after the folding operation has been completed.

The clamping plate is adjustably secured by means of screws 146 to feet 147 which extend upwardly and terminate in dovetailed portions 148 which are slidably arranged in correspondingly dovetailed portions 149 in the base 52 of the presser head. 1t is desirable to provide a different clamping plate with every substantial change in the dimensions of the folded material and ther adjustable arrangement of the clamping plate support permits this result to be accomplished.

1t will beV noted that7 inasmuchas the feet are slidably arranged in the base of the presser head, the feet may be moved inwardly toward each other to accommodate a ciampi-ng plate of smaller dimensions, or moved outwardly from each other to accommodate a clamping plate ofy larger dimensions. Y

The feet to which the clamping plate is supported are provided with the portions 150 and, with clamping plates of small dimensions, may be relatively reversed in the ways in the presser base so that the toe portions point inwardly toward each other thereby the kmore effectively to provide for supporting the smaller sizes of the clamping plate.

After the presser head has been lowered to clamp the material to the material table, 4and thel folding operation has beenjcompleted andthe forming plates are retracted lfrom theV folded edge, itis necessary that the forming platesvbe again extended to condition the ymachine for a new folding operation. This extending `operation ofthe.v

forming plates is performed by the upper cam rod 71 during the latter part: offits movement to raise the presser head. For; this purpose a forked lever Vis provided whichI is pivoted at 156 toa cross bracketA 157 boltedv to two adjacent cross `ribs of the presser arm and its two arms 155n andl 155b are exteiideddownwardly on each side of the upper cam rod 71 and the forming plate operating rod 116'. A pin 158 is secured in the upper cam lrod "(1y to engage saidforked lever on one side and a pin 159 isV secured insaid operating plate rod 116 to engage said forl lever on the other 'side thereof. Y

In thefoperation of the machine, the

presser head is,first moved downward'to clamp the material-to the material table Vet() and by the arrangement of the pin and fupper cam rod, said' iodis moved away Vfrom the forked lever-155 without actuating said lever which', however, falls by gravity away from pin 159 and permits the Yrod 11G to move, forward. The forming plates are thereafter retracted and the forming plate operating rod 116 is consequently moved inward to accomplish this purpose and during the operation ofthe other component parts ofthe machine remains in this position.

After all operations upon the material have been completed the presser head is raised and the upperl cam rodfTl is for this ur ose moved toward the rifrht seegFiOf. 4.

byfengages the arms of said forlredileverf v155 and movesit away from said presser-y Y by the forming plate operating rod 11d-and In such movement thepin 15S-carried therehead intoengagement with the pin 159 carried consequently moves said rod outwardly to extend the forming plates whichl are thereafter'Y locked in extended position.

1n the'operation of.V the machine, the materialis rst clamped to the material table with the forming plates extended to define the line of fold, the-edges are folded over the forming plates, the forming --plates arewithdrawn, thepresser head is moved `upwardV slightly and theycreasingjiron is brought into contact-with' the folded edge to rmlypress the ,folded edge together and form the ornamental marking thereon and Ais permittedto remain in such position for a suitable lengthE of time. by the clutching means above described, or by suitable dwell portions in the cams controlling the operation of the component parts of the machine,

the presserhead drops, the wipers and creasing ironare withdrawn, the presser headis movedcompletely upward and theV forming plates are again extended for a new cycle of operation.

The cam path lof the camV disk 15,

by whichthecomponentpartsfof the machine are operated,` isprovidedwith a dwell portion- 16ain which the cam roll'SS of the sliding cross head is adapted tol be disposed at-the end of a complete cycle ofoperation of the machine and when-the" clutch has operated to release the motor Vdriven shaft from the clutchdilsk. The dwell portion 16? is adapted tol beof suicient length formedV with an active portion 16D which, with rotation ofthe caindisk, servesto move .80' e to permit-arsmall' rotary-movement of-said disklw-ithoutaffectingthe -componentpai-ts y ofthe machine.l Thecamfpath lo is also Asa the slidin crosshead-f-35f toward the left, Y

Fig.- 1.

he movement offsaidcrosshead Y causes the presser head tofbe lmoved. downf ward and the oamgroove 79, inthe cam l.

bloei; 80 controlling-themovenients of said presserv head is formed with active portion 79- to; cause such vmovement ofthe-presser head--y The Vdownward movement ofl the.V presser head l causes thefmaterial to -be -se-v curely clamped te the -materialtable andy the corners ofthe-.material to be turned upat v thie edgefofthe forming-plates which are eX- tended and locked in extended positionto define .the line o-f-feld The cam` groove 79 isl furtherformed-witha dwell poi-tion 79br therein which, with-*continuedmovement of the machine, serves to-maintain the 4presser head in` depressed y position4 to permit the operationofiother component parts of the maehine.-

cationandthe corner-wipersl' are thereafter-moved inward andthe-edge of thematei-ialifs therebyfolded over the formingportion 130"- whichi-has--now been-*moved finto.

engagement with i therolll'er connected with the rod-=12-7 w-hichfcontrols the movement of theforming-pl'ates and with continued movement of the cross head serves-to retract Vsaid formingl plates.

Y Yi05-V VlfithI continued-operationofthe machine, g ,the side wipers--lfare moved inward by means describediin the-above named appli'-V The irstf-operation'inthe retraction of v i said forming-plates4 is4 the: engagement of v the -endl of the larm 'onextension 135-'with thesaid locking key from the slot 132 in the formingY plate operating rod 11G to thereby unlock said rod. `With continued movement of said extension 127 and th@ lOWGl cam rod lo,- the contact block 131 is moved into contact with the end of said formingI plate opera-ting rod 116 and serves to move said rod forward to thereby retract the forming plates. During such movement the locking key 133 may be maintained in elevated position by engagement with the fiat or dwell portion 135L of extension 135 or by the operating` rod 116.

The edges havenoiv been folded and the forming plates Withdrawn and the next step is the partial upuf'ard movement of the presser head which is performed by means of the portion T9 of the ycam groove 'T9 at the end of thedivell portion '79D thereof.

The creasing iron 1T() is noiv moved into contact Wit-h the underside of the folded material; and thefolded edge is pressed against the Wipers which are yet in their extended position, and the mechanism may be arranged to remain-in such position for a suit-able period of time by tie provision of a vsecond divell portion in l main -am groove 16 of the cam disk 1o at the end of the active portion 16b therein, or by the clutching means above deseribet. lilith continuedmovement of said cani disk the creasing iron 1?@ is moved downward away from contact vvithv the material and the cam grooves 'T9 and 130 controlling the presser head and the forming platesare provided with terminal divell portions e9 and 130C respectively to permit the Withdrawal of the creasing iron Wit-hout causing a i'iiovement of said mechanism.

rthe sliding cross head 35 is new at the end of the stroke and returns under action of the cam driving disk 15. in its return, the sequence of operations is carried out inthe reverse order and the presser head vdropsY and the lower cam rod 125 controlling the re- `head 35 in the dwell portion 1G of said cam groove 16 and the machine is in condition for the removal of the vfolded ald. creased material and the insertion of a new blank for folding.

l claim:

1. A material folding machine includinga base having a material receiving portion Within its border, a presser arm supported by said base and extended over said receiving` portion and means pivotally connecting said arm and said base.

2. material folding` machine including a base haring a material receiving portion within its border, a presser arm supported by said base and extended over said receiving portion, means pivotally connecting' sa'd arm and said base, and means to lock said presser arm to said base.

Si material folding` machine including a base, a presser arm carried thereabove, a presser head mounted thereon reciprocable toivard and away from said base, forming plate operating means recipiocably mounted in said head, and a forming plate adjustably mounted on said operating means.

a. ln a material folding machine, a presser head, a member reciprocatingly supported by said head, a forming plate adjust-able with respect to said member for the defining of differing dimensions of fold, and means securing' said forming plate in an adjusted posit-ion to said member.

5. in a material folding machine, apresser head, a member reeiprocatingly supported by said head, an adapting plate adjustably arranged thereon, and a forming plate au-V justably carried by said adapting plate.

G. in a material folding` machine, a presser head, a member reciprocatingly supported said head, an adapting plate adjustably arranged thereoina forming plate adjustably carried by said adapting plate, and

4means securing said plates and member iu adjusted position.

T. ln a materialfolding machine, a forining plate ofithin material, a forming plate support, means detachably securing said plate to said support, an ope ating member, said support haring means for adjustable connectionn'ith said operating member, and means to lock said support and operating member in any adjusted connection there- With.

8. ina material folding machine, a clamping plate of relatively thin material having` feet risingv tl erefrom for connection with a component part of the machine.

9. ln a material folding machine, a presser head, a 'clamping plate of relatively thin material, a plurality of plate supporting feetgmeans detachably coiinectingi said feet and plate, said presser head andl feet having coperating m ans which admit of the adjustable connection of said feet with said head.

10. .ln a material folding machine, a presserhead, a material clamping plate, a plurality of clamping plate supporting` feet, means detachablysecuring said plate to said feet, said presser head having grooves therein, and said feet slid'ably arranged in said grooves.

l111 In a material folding machine, a

presser arm, a presser head reeiprocatingly carried by said arm, acam to reciprocate said presser head, and a cam to govern the movements of said first cam.

12. In a material folding,` machine, a

presser arm, avpi'esser head reciprocatingly carried by said arm and a cam carried by said arm to reciprocate said presser head.

1B. In a material folding machine, a' presser arm, a presser head reciprocatinglyV cariied by said arm, a cam to reciprocate said presser head, a cam governing the movements of saidfirst cam,and means eX- Ytended between said cams for the operation of said presser head.

14. In a material folding machine, ai

presser arm, a presserhead .reciprocatingly carriedby said arm, a cam to reciprocate said head, forming` plates carried by said head, a cam. to extend and retract said plates, and a governingcam for said first cam.

ing plates entendible to define a line of f olld and retractible `from extended position, means Vto lock said plates lin extended position, means to retract said plates, and means V.cariiedrby said retracting,` means to unlock vsaid vforming` plates. f

16. In a material folding machine, forml ing` plates extendible to decline a line of fold andy retractible Vfrom extended position,.

means to lock said plates vin extended position, and means to retractisaid plates, said llat-ter means serving to unloclrsaid plates'y previous to the retracting operation.

17. In a material folding` machine, a material table, a material clamping plate mov- =able tow-ard or away from said table, form- ,clamping plate, means to act-nate said forniing,` plates, and means connecting both the aforesaid Ameans to cause theirconioint operation.

19. In a material folding machine, a ma-V terial table, a clamping plate movable to- 15. In a material folding machine, form- Ward and from. said Itable: .forming-.plates eX- tendible toI define aline of fold fand retractible therefrom, an operating rod for said. clampingV plate, an operating rod'for said' form-ing plates, and a lever connecting said.y ltivo rods Wherebya movement ofione of'said rodscauses a'movement of' the-other of saidi rods. f

20. Iii-a material folding machi-ne,.a material'table, a clampingplate movable toward and avvayw from, saidi table, forming plates eXtendib-le-to 'define a line ofi fold, and retractible therefrom, arr-operating rod for said clamping. plate, means to operate it, an operatingrod for said forming plates,

and a pivotedlleverv connecting-V said rods'Y whereby a movement of-sa'idclampingplate operating rod `in one 'direction' causes a movement of said-otherrodinthe opposite direction.

21. In a material foldiiigmachine, a materiall table, a clamping plateniovable toed adjacent said rods, andlmeans connecting said lever'withsaid rods Lwhereby a m'ovement of onerod in onedirection causes-a movement of said rod 'inthe other direction is Without effect inginoviiig;` saidfother rod. 1 g

22. Ina material foldingl-machine,fforii-1 Ward and'away from said table, forming platesextendible to delinea lineoffold'and retractible therefrom, an operating 4rod for said clamping-plate, anfoperating. rod forV said forming` plates, a pivotedlever eXtending plates to define a line offold,and vvipers to fold the material, andmeansftoadjiist movement of the Y other of 'said rods,V andfa said forming plates and; Wipers-relatively.

to each other toV admit of? the-folding of material of differing thicknesses.

23. In a material foldingmachine, forin-V ingl plates to defi-ne aline offfold,and Wipers to fold-the material, saidk formingl plates be; v

ing movable to afposition belovvrthevvipers,

and 4means to adjust the. position'. of said' plates beloviT said Wipers tokpermit the foldinpi of material to differing dimensions.

In testimony whereof, I- have 4(signed` my name to this specification, in the presence of two subscribing` Witnesses..

Witnesses:

T. T. Giziiiimvooi),`V H. B. Davis;

JosErHW. ANTHONY, 

